From nobody Fri Apr 17 09:26:09 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 88BE9C433FE for ; Thu, 17 Nov 2022 12:36:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239368AbiKQMgd (ORCPT ); Thu, 17 Nov 2022 07:36:33 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35454 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234648AbiKQMg2 (ORCPT ); Thu, 17 Nov 2022 07:36:28 -0500 Received: from mx.swemel.ru (mx.swemel.ru [95.143.211.150]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 025DEBF7A for ; Thu, 17 Nov 2022 04:36:28 -0800 (PST) From: Denis Arefev DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=swemel.ru; s=mail; t=1668688586; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=z4MrYjbKsvS7dc79yNLvhFfNXfIiOrVHTG1RytCGWi8=; b=MeiXQZPs4gKo+k8/Zk6OM1T7WFblVklgTWM8O3lMNnYHzT+s9xXZLpThAe2U87J05vIuXa 1VzXaI5q6S0EZRITeCkrJmzBFAnE+TkKPcPA1R6eJ98wN1sqT+09VCmJdSTMRuD90jN+sT bejmmRgCaulNBGeHc75fzEA+hRjKWPE= To: Miquel Raynal Cc: Richard Weinberger , Vignesh Raghavendra , linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, lvc-project@linuxtesting.org, trufanov@swemel.ru, vfh@swemel.ru Subject: [PATCH] mtd: lpddr: Added literal suffix Date: Thu, 17 Nov 2022 15:36:25 +0300 Message-Id: <20221117123625.117161-1-arefev@swemel.ru> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" The value of an arithmetic expression 1 << lpddr->qinfo->DevSizeShift is subject to overflow due to a failure to cast operands to a larger data type before perfoming arithmetic Signed-off-by: Denis Arefev --- drivers/mtd/lpddr/lpddr_cmds.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/lpddr/lpddr_cmds.c b/drivers/mtd/lpddr/lpddr_cmds.c index ee063baed136..360b2af8340b 100644 --- a/drivers/mtd/lpddr/lpddr_cmds.c +++ b/drivers/mtd/lpddr/lpddr_cmds.c @@ -61,7 +61,7 @@ struct mtd_info *lpddr_cmdset(struct map_info *map) mtd->_point =3D lpddr_point; mtd->_unpoint =3D lpddr_unpoint; } - mtd->size =3D 1 << lpddr->qinfo->DevSizeShift; + mtd->size =3D 1UL << lpddr->qinfo->DevSizeShift; mtd->erasesize =3D 1 << lpddr->qinfo->UniformBlockSizeShift; mtd->writesize =3D 1 << lpddr->qinfo->BufSizeShift; =20 --=20 2.25.1